component
TS3A27518ERTWR
Public Made by Adomby adom
Texas Instruments Analog Switches, Multiplexers, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTS3A27518ERTWR
Texas Instruments · Analog Switches, Multiplexers · WQFN-24-EP(4x4)
TS3A27518ERTWR from Texas Instruments, in a WQFN-24-EP(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | COM1 | bidirectional | Common signal path for channels 1-3, bidirectional analog switch carrying signals from 0 to VCC. |
| 2 | GND | power_in | Ground reference. |
| 3 | COM2 | bidirectional | Common signal path for channels 1-3, bidirectional analog switch carrying signals from 0 to VCC. |
| 4 | COM3 | bidirectional | Common signal path for channels 1-3, bidirectional analog switch carrying signals from 0 to VCC. |
| 5 | VCC | power_in | Positive supply voltage, operating range 1.65 V to 3.6 V. |
| 6 | COM4 | bidirectional | Common signal path for channels 4-6, bidirectional analog switch carrying signals from 0 to VCC. |
| 7 | COM5 | bidirectional | Common signal path for channels 4-6, bidirectional analog switch carrying signals from 0 to VCC. |
| 8 | NO1 | bidirectional | Normally-open signal path for channel 1, bidirectional analog switch carrying signals from 0 to VCC. |
| 9 | COM6 | bidirectional | Common signal path for channels 4-6, bidirectional analog switch carrying signals from 0 to VCC. |
| 10 | NO2 | bidirectional | Normally-open signal path for channel 2, bidirectional analog switch carrying signals from 0 to VCC. |
| 11 | IN2 | input | Digital control input for channels 4-6, logic low selects NC path and logic high selects NO path, accepts 0 to 3.6 V. |
| 12 | NO3 | bidirectional | Normally-open signal path for channel 3, bidirectional analog switch carrying signals from 0 to VCC. |
| 13 | NO6 | bidirectional | Normally-open signal path for channel 6, bidirectional analog switch carrying signals from 0 to VCC. |
| 14 | NO4 | bidirectional | Normally-open signal path for channel 4, bidirectional analog switch carrying signals from 0 to VCC. |
| 15 | NO5 | bidirectional | Normally-open signal path for channel 5, bidirectional analog switch carrying signals from 0 to VCC. |
| 16 | NC5 | unconnected | Normally-closed signal path for channel 5, bidirectional analog switch carrying signals from 0 to VCC. |
| 17 | EN | input | Digital enable input, logic high disables all channels to high-impedance state, accepts 0 to 3.6 V. |
| 18 | NC4 | unconnected | Normally-closed signal path for channel 4, bidirectional analog switch carrying signals from 0 to VCC. |
| 19 | NC6 | unconnected | Normally-closed signal path for channel 6, bidirectional analog switch carrying signals from 0 to VCC. |
| 20 | NC3 | unconnected | Normally-closed signal path for channel 3, bidirectional analog switch carrying signals from 0 to VCC. |
| 21 | IN1 | input | Digital control input for channels 1-3, logic low selects NC path and logic high selects NO path, accepts 0 to 3.6 V. |
| 22 | NC2 | unconnected | Normally-closed signal path for channel 2, bidirectional analog switch carrying signals from 0 to VCC. |
| 23 | NC1 | unconnected | Normally-closed signal path for channel 1, bidirectional analog switch carrying signals from 0 to VCC. |
| 24 | N.C. | unconnected | Not connected. |
| 25 | Thermal Pad | power_in | Exposed thermal pad for heat dissipation, connect to ground plane. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-24-EP(4x4) |
| Category | Interface |
| Pins | 25 |
CAD (KiCad official)
- Symbol:
TS3A27518ERTWR - Footprint:
Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm - 3D model: WQFN-24-EP(4x4) (KiCad packages3D, STEP)
- 3D model files:
ts3a27518ertwr-etched.step/ts3a27518ertwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ts3a27518ertwr.step/ts3a27518ertwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (35 pp, sha256
4874b1eadb4be0c4, retrieved 2026-09-26, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).